walternussbaum
Newbie level 2
solar panel charger circuit lead acid
Dear Friends
I must design for my company a solar cells (17 V nominal) to lead acid gel battery (12V nominal, 14.6V charge final voltage) charger.
I want to use a PIC single chip computer with A/D and D/A-converters for regualting between solar cells and battery/load line with two cool-mosfets (these are the same as a logic level mosfets). the unit should also prevent against solar back current in the night, overcharge, undercharge and load over current.
I also must implement a battery charge measurement (in Ah), i want to do this with the PIC (measuring the battery charge/discharge current and integrating this current up/down respectively).
The surge load current is 20A or 40A, nominal load current is about 5A or 10A.
Do you have ideas, critics, questions or suggestions? I'm glad about every answer from you. I also would like to help somebody with similar questions. For a very helpful idea or a good design we would pay, if you want. Thank you very much!
Walter Nussbaum, dipl. Electronics Engineer ETH, Megasol Inc., Höhenring 17, 8052 Zürich
mail: wnussbaum@gmx.ch
phone: +41 43 268 90 32 mobile: +41 79 297 62 78
Dear Friends
I must design for my company a solar cells (17 V nominal) to lead acid gel battery (12V nominal, 14.6V charge final voltage) charger.
I want to use a PIC single chip computer with A/D and D/A-converters for regualting between solar cells and battery/load line with two cool-mosfets (these are the same as a logic level mosfets). the unit should also prevent against solar back current in the night, overcharge, undercharge and load over current.
I also must implement a battery charge measurement (in Ah), i want to do this with the PIC (measuring the battery charge/discharge current and integrating this current up/down respectively).
The surge load current is 20A or 40A, nominal load current is about 5A or 10A.
Do you have ideas, critics, questions or suggestions? I'm glad about every answer from you. I also would like to help somebody with similar questions. For a very helpful idea or a good design we would pay, if you want. Thank you very much!
Walter Nussbaum, dipl. Electronics Engineer ETH, Megasol Inc., Höhenring 17, 8052 Zürich
mail: wnussbaum@gmx.ch
phone: +41 43 268 90 32 mobile: +41 79 297 62 78